Dimensional Analysis
Order: Ampicillin 1000mg PO Dose available: 500 mg tablets How many tablets will be given? 2 tablets. -Start with what you want (tablets). -Put tab as the numerator. -Find something related to tablets in the problem and put it on the bottom as the denominator -Put the dose av...
NSG 170 Final Exam Questions and
Solutions
Dimensional Analysis ✅
Order: Ampicillin 1000mg PO
Dose available: 500 mg tablets
How many tablets will be given? ✅2 tablets.
-Start with what you want (tablets).
-Put tab as the numerator.
-Find something related to tablets in the problem and put it on the bottom as the
denominator
-Put the dose available (500 mg) as the denominator.
-Get rid of mg by putting the order (1000 mg) as the second numerator.
-Multiply top numbers and divide the answer by the bottom number.
tab= 1 tab x 1000mg
------------------------- = 2 tabs
500 mg
Order: Tikosyn 0.5mg
Available: Tikosyn 125 mcg capsules
How many capsules should be administered? ✅4 capsules.
-Start with what you want (capsules)
-Put cap as the first numerator
-1 capsule= 125mcg. Put 125mcg down as the denominator.
-Put 0.5mg as the second numerator and nothing below it.
-Convert by putting 1000mcg as the third numerator and 1mg as the denominator
(1000mcg=1mg)
-Cancel out mg and mcg
Cap= 1 cap x 0.5mg x 1000mcg
------------------------------------ = 4 capsules
125mcg 1mg
A client is ordered 0.5 milligrams of Digoxin. 250 microgram tablets are available. How
many tablets will you give? ✅2 tablets
A client is ordered 35 mgs of Codeine phosphate by subcutaneous injection. 50 mgs in
1 ml of liquid for SC Injection is available. How many mls will you administer? ✅35 1
35
--- X -- --- = 0.7mL
50 1 50
,A client is ordered 30 milligrams of Frusemide intravenously. 10 milligrams in 1 milliliter
of liquid for IV Injection is available. How many milliliters will you administer? ✅3 mL
Calculate the drip rate for 100 mls of IV Fluids to be given over a half hour via a giving
set which delivers 10 drops/ml. ✅33 drops / minute
One and a half liters of Normal Saline is required to be given over 4 hours. Using a
giving set which delivers 10 drops/ml how many drops per minute will need to be given?
✅63 drops / min
IV administration sets ✅•Microdrip = 60 gtts/ml
•Standard IV set = 15 gtts/ml
•Blood Admin set = 10 gtts/ml
Metric Equivalents ✅1 liter (L) = 1000 milliliters (ml)
1 ml = 1 cubic centimeter (cc)
1,000,000 micrograms (mcg) = 1 gram (g)
1,000 mcg = 1 milligram (mg)
1,000 mg = 1 g
1,000 g = 1 kilogram (kg)
1 kg = 2.2 pounds (lb)
Order: Keflex 20mg/kg/day. The patient weighs 20 pounds
Available: Keflex oral suspension 125 mg per 5 mL
How many mL/dose are required? ✅2.4 mL/dose
Doctor orders Amoxil for a child that weighs 63 lbs. The safe dosage range for this
medication is 50 mg/kg/day every 8 hours. What is the safe dose for this child per dose?
✅477 mg/dose
Doctor orders Zofran 2 mg for a child that weighs 13.6 kg. The safe dosage range of
this drug is 0.15 mg/kg. Is this a safe dose? ✅Yes
Gas Exchange ✅Breathing, transport of gases, and exchange of gases with tissue
cells; Provides O2 for cellular respiration and removes its waste product, CO2
Hypercarbia ✅AKA hypercapnia. A condition that arises from having too much carbon
dioxide in the blood. It is often caused by hypoventilation or disordered breathing where
not enough oxygen enters the lungs and not enough carbon dioxide is emitted.
Hypoxemia ✅Below-normal level of oxygen in your blood, specifically in the arteries.
Hypoxemia is a sign of a problem related to breathing or circulation, and may result in
various symptoms, such as shortness of breath.
Environmental Exposure ✅Risk factor for impaired gas exchange. Ex: Air pollution
, Primary Prevention ✅Primary=Prevention
the stage designed to reduce, modify, or eliminate risk factors for potential illness.
Smoking cessation, increase activity level, limit environmental exposures
Secondary Prevention ✅Secondary=Screening
-focuses on early identification of individuals or communities experiencing illness,
providing treatment, and conducting activities that are geared to prevent worsening
health status
-examples: communicable disease screening and case finding; early detection and
treatment of diabetes; exercise programs for older adult clients who are frail
Tertiary Prevention ✅Tertiary=Treatment
-aims to prevent the long-term consequences of a chronic illness or disability and to
support optimal functioning
-examples: prevention of pressure ulcers as complication of a spinal cord injury;
promoting independence for the client who has traumatic brain injury. Avoidance of
allergens or triggers.
Pulmonary function tests (PFT) ✅One of several different tests used to evaluate the
condition of the respiratory system. Measures of expiratory flow and lung volumes and
capacities are obtained using a spirometer.
Chest x-ray ✅taking a radiographic picture of the lungs and heart from the back and
sides
Computed tomography (CT) scan ✅a series of X-ray photographs taken from different
angles and combined by computer into a composite representation of a slice through
the body. Also called CAT scan.
Arterial blood gas (ABG) ✅analysis of arterial blood to determine the adequacy of lung
function in the exchange of gases.
pH= 7.35-7.45
Po2=80-100
PaCo2=45-35
HCO3=22-28
Complete blood count (CBC) ✅Comprehensive blood test that includes red blood cell
count (RBC) 4-6 million, white blood cell count (WBC) 5,000-10,000, hemoglobin (Hgb)
12-18, hematocrit (Hct) 37-52%, white blood cell differential, and platelet count 150,000-
400,000
Anemia labs ✅-blood studies show RBC count and hemoglobin and hematocrit levels
to be below normal
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